Feed mechanism for phonographs.



FEED 11811111111181111811 121188088811118.

APPLICATION FILED JUNE 3, 1907.1

WILLIAM A. Coon, orivnw YORK, n. 'Y

FEED MECHANISM FOR PHONOGRAPHS.

Specification of Letters Patent.

Patented Feb. 4:. 1908.

Application filed June 3. 1907- Serial No. 376.913.

To all whom it ma/y concern.'

Be it known that I, WILLIAM A. COOK, a citizen of the United States, residing in the city of New York, borough of Brooklyn, in the county of Kings and State of New York,

have invented a. certain new and useful Improvementin Feed Mechanism for Phonographs, of which the following is a speciiication. 2

The invention relates to-means for moving the reproducer unison with the spiral groove on the record so that the reproducen' pointshall be maintainedvin proper relation thereto. .A

In some forms of machines for reproducing sounds the reproducer-point or sapphire is lguided only by its engagement in the shallow groove in the record, and slight vibrations of the instrument, especially unless it be carefully leveled, cause the sapphire to leave its place in the groove and thus impair the rendition of the record. vIn other machnes expensive and complex mechanism is employed to avoid this difficulty. The object ofthe present invention is. to provide simple, inexpensive feeding means for insuring the engagement of the sapphire or point withv the record-groove, and for easily and quickly releasing such feed mechanism for a re-traverse, by the reproducer, of the same or another record.

The invention consists in certain novel features and details of construction by which the above objects are attained, to lbe hereinafter described.

The accompanying drawings form a part of this specification and show vthe invention as applied to a simple form of phonograph.

Figure 1 is a side elevation of .such an instrument equipped with my improvement. Fig. 2 is a corresponding plan view, partly in horizontal section. Fig. 8 is a vertical section, partly in elevation, showing a portion of the feed mechanism and releasing means on a larger scale. Fig. 4 is a4 corre-l sponding horizontal section and plan view.

Similar letters of reference indicate the.'

same parts inall the figures.

-v In-the form of sound-reproducing machine illustrated, A is the .base of the instrument, A1 a post thereon at one end of which is mounted the record-mandrel B provided with a ulley B1 by whichit is rotated through a belt 2 from the pulley C1 on a projecting l shaft from a spring motor, only v{ )artially shown, inclosed in the casing C and having a speed-governor C, winding-shaft C3 and controlling leverI Cf. The motor and its equipments maybe of any ordinary or approved type. At the other end of the base is a horni e post A2 receiving a standardor pintlld DI at the upper end of which is attached the horn D carrying the reproducer D2 on which is the sapphire D3 adapted to track in the spiral groove on Aa cylindrical record M'ca'rried on `'the mandrel B. On the upper end of the horn-post is a' bracket A3 having lugs Af in which is4 journaled a worm'E having a pulley E1 by which the worm is rotated through the medium of a belt E2 running on a pulley C5 on the winding-shaft l C3 of the motor. The wormmesheswith a segmental worm-wheel F on the-pintle D1 v to which thehorn is secured and causes the latter to swing slowly.

The pintle D1 is'receivedrand guided in a closely'itting hole drilled vertically in the l horn-post, andits'conical lower end 1s sup- A ported on a ste formed by the plane upper end of a screw .of quickV itch entering. the horn-post from below and aving. a. laterally extending lever Gzon'which is an upturned arm Cr3 by which the screw G may be partially rotated in the horn-post and,jb'y reason of its quick pitch, caused' ter'rise therein and lift the pintle D1 and its attachment suiciently to release the worin-wheel F from the worm E. Thus conditioned the horn is free and may be swung unobstructedly in either direction.

In using the machine the screw G is turned as above described to free the horn and per'- I VAt the termination of the groove thehorn is lifted as before and returned to the starting. position.

By carefully Cpro ortionigthe diameters of t e ulleys lill,- pitch of the worm E,

and ra 'us of the se ment F, relatively to the.

record-rotating p eys-B1 C1, the slow travel of the reproducer ismade' to coincide with the advance of thereco'rdoove and the sapphire maintained "in t el latter under lall conditions. The pulley C is describedas mounted on the winding-shaft of the motor but itiwillY be understood that it may be located on'any conveniently disposed shaft thereof, and that motion may be communicated to )the worm by other means than the-belt and pulleys shown, de ending upon the character 'and location o' the motor relatively .to the other parts of. the instrument.

Other forms of disengaging mechanism may be substituted for the screw G, andthe worm and segment varied asI required in adapting Athe inventionl for service with otherforms ofv sound-reproducing machines.

.1. Ina'rnachine of the character set forth, a reprodsicenadapted to-serve .with a record,

a pintle; on which said ireproducer ismounted, a AWorm-Wheel on .said intle, a worm; meshing lwith vsaid worm-W eel, and means Afor rotating said `worin. l ,y A .y

2. In amachin'e of thecharacter set forth, -ja reproducei adaptedto servevith a record, a pintle on whichsaid reproducer is mounted, Aa Worm-Wheel on saidpintle, a worm meshving with saidworm-Wheel, means for rotating said worm, .and means 'for freeing said pintle fromengagement With said Worm.

. 3. In a' machine of the character set forth,

a reproducer adapted to serve, With a record, a pintle on which said reproducer is mounted, a worm-wheel on `said pintle, a Worm meshing with said worm-Wheel, means for rotating said worm, and means for moving saidworm- Wheel and worm out 'of mesh with each other.

4. In a machine offt'he character set forth, a reproduceradapted to serve with a record',- a pintle on which said reproducer is mounted, a worm-Wheel on` said pintle, a worm meshing with said worm-wheel, means for rotat-Y ing said worm, and means for moving said pintle axially to engage said worm-wheel and worm.

-5. In a machine ,of the character-set forth, a reproducer adapted to serve with a record, a pintle on whichsaid reproducer islmounted,

I a post in which said pintle is received, aY

worm-wheel on said pintle, a wormmeshing with said worm-wheel, meansl for rotating said worm, a screw in said post s et axially to` said pintle and' serving-as a step therefor,

and means for turning said screw to lower or raise said (pintle and thereby engage or disen age sai worm-wheel' and worm. f.- 6. n a machine of the character set forth,

a motor, a record-carryin means rotated said motor, a post, a pint e received therein, a horn mounted on said pintle, a re roducer carried by 'said horn, a Worm-whee on said ,pintle, a worm in mesh with said worm- Wheel, and connections from said motor to saidworm for rotating the latter. .65 7. In-a machine of the character set forth, a motor, a record-carryin means rotated by said motor, a post, a pint e received therein, .a horn mounted on said pintle, a re roon-- said pintle, a Worm in mesh With said worm-Wheel, connections from said motor to said Worm lfor rotating the latter, and \m'eans for lowering and raising. said pintle to engage and disengage 'said Worm-Wheel 75 and Worm.

.8. In a machine of the character set forth,'w a motor, a record-carrying means rotated .by said motor, a ost, apintle received therein, a'bracket fixe on said post, a horn mount- 80 ed onsaid pintle, a reproducer carried by said horn, a worm-wheel on said pintle, a Worm rotatably mounted in said bracket and ,ada ted to mesh with saidworm-Wheel, a

pul ey on said worm, a pulley on a shaft-of said motor, a belt running on said pulleys and serving to rotate said Worm, a screw in said post set axially to said pintle and serving as a step therefor, and means for turnin `said screw to lower or raise said pintle .an y

thereby engage or disengage said worm- Wheel and worm. y

`In testimony that I claim the invention above set forth I -aflix my signature, in presence of two Witnesses.

' WILLIAM A. oook.

- Witnesses: y

CHARLES RSEARLE,

It. P. SoHULZE.

ducer-carried by `-said horn, a Worm-w eel -70 4 

